Nov 30 08:30:39.061 INFO checking StephenAshmore/synth against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 08:30:39.061 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-2/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +a49316ddc99d9d595193557fc899f6c52e4d9af9-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 30 08:30:39.420 INFO [stdout] a064273acb1b8b64c51c016f3b4e398c024a53bfb7d76fc4bbbdb5a68f11cebf
Nov 30 08:30:39.426 INFO running `"docker" "start" "-a" "a064273acb1b8b64c51c016f3b4e398c024a53bfb7d76fc4bbbdb5a68f11cebf"`
Nov 30 08:30:40.008 INFO [stderr] usermod: no changes
Nov 30 08:30:40.070 INFO [stderr]     Checking terminal_size v0.1.7
Nov 30 08:30:40.476 INFO [stderr]     Checking synth v0.1.0 (/source)
Nov 30 08:30:40.923 INFO [stderr] warning: unused imports: `Receiver`, `Sender`
Nov 30 08:30:40.923 INFO [stderr]  --> src/main.rs:3:23
Nov 30 08:30:40.923 INFO [stderr]   |
Nov 30 08:30:40.923 INFO [stderr] 3 | use std::sync::mpsc::{Sender, Receiver};
Nov 30 08:30:40.923 INFO [stderr]   |                       ^^^^^^  ^^^^^^^^
Nov 30 08:30:40.923 INFO [stderr]   |
Nov 30 08:30:40.923 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 08:30:40.923 INFO [stderr] 
Nov 30 08:30:40.923 INFO [stderr] warning: unused import: `std::sync::mpsc`
Nov 30 08:30:40.923 INFO [stderr]  --> src/cli/interface.rs:3:5
Nov 30 08:30:40.923 INFO [stderr]   |
Nov 30 08:30:40.924 INFO [stderr] 3 | use std::sync::mpsc;
Nov 30 08:30:40.924 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 30 08:30:40.924 INFO [stderr] 
Nov 30 08:30:40.924 INFO [stderr] warning: unused import: `BufRead`
Nov 30 08:30:40.924 INFO [stderr]  --> src/cli/display.rs:1:28
Nov 30 08:30:40.924 INFO [stderr]   |
Nov 30 08:30:40.924 INFO [stderr] 1 | use std::io::{self, Write, BufRead};
Nov 30 08:30:40.924 INFO [stderr]   |                            ^^^^^^^
Nov 30 08:30:40.924 INFO [stderr] 
Nov 30 08:30:40.992 INFO [stderr] warning: unused variable: `error`
Nov 30 08:30:40.992 INFO [stderr]   --> src/cli/display.rs:41:21
Nov 30 08:30:40.992 INFO [stderr]    |
Nov 30 08:30:40.992 INFO [stderr] 41 |                 Err(error) => String::from(""),
Nov 30 08:30:40.992 INFO [stderr]    |                     ^^^^^ help: consider using `_error` instead
Nov 30 08:30:40.992 INFO [stderr]    |
Nov 30 08:30:40.992 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 08:30:40.992 INFO [stderr] 
Nov 30 08:30:40.992 INFO [stderr] warning: unused variable: `buffer_pointer`
Nov 30 08:30:40.992 INFO [stderr]   --> src/cli/display.rs:57:17
Nov 30 08:30:40.992 INFO [stderr]    |
Nov 30 08:30:40.992 INFO [stderr] 57 |         let mut buffer_pointer = 0;
Nov 30 08:30:40.992 INFO [stderr]    |                 ^^^^^^^^^^^^^^ help: consider using `_buffer_pointer` instead
Nov 30 08:30:40.992 INFO [stderr] 
Nov 30 08:30:40.993 INFO [stderr] warning: variable does not need to be mutable
Nov 30 08:30:40.993 INFO [stderr]   --> src/main.rs:12:9
Nov 30 08:30:40.993 INFO [stderr]    |
Nov 30 08:30:40.993 INFO [stderr] 12 |     let mut user_finished = false;
Nov 30 08:30:40.993 INFO [stderr]    |         ----^^^^^^^^^^^^^
Nov 30 08:30:40.993 INFO [stderr]    |         |
Nov 30 08:30:40.993 INFO [stderr]    |         help: remove this `mut`
Nov 30 08:30:40.993 INFO [stderr]    |
Nov 30 08:30:40.993 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 08:30:40.993 INFO [stderr] 
Nov 30 08:30:41.002 INFO [stderr] warning: variable does not need to be mutable
Nov 30 08:30:41.002 INFO [stderr]   --> src/cli/display.rs:57:13
Nov 30 08:30:41.002 INFO [stderr]    |
Nov 30 08:30:41.002 INFO [stderr] 57 |         let mut buffer_pointer = 0;
Nov 30 08:30:41.003 INFO [stderr]    |             ----^^^^^^^^^^^^^^
Nov 30 08:30:41.003 INFO [stderr]    |             |
Nov 30 08:30:41.003 INFO [stderr]    |             help: remove this `mut`
Nov 30 08:30:41.003 INFO [stderr] 
Nov 30 08:30:41.003 INFO [stderr] warning: field is never used: `m_sender`
Nov 30 08:30:41.003 INFO [stderr]  --> src/cli/interface.rs:7:5
Nov 30 08:30:41.003 INFO [stderr]   |
Nov 30 08:30:41.003 INFO [stderr] 7 |     m_sender: Sender<String>,
Nov 30 08:30:41.003 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 08:30:41.003 INFO [stderr]   |
Nov 30 08:30:41.003 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 30 08:30:41.003 INFO [stderr] 
Nov 30 08:30:41.012 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 08:30:41.012 INFO [stderr]   --> src/cli/display.rs:93:9
Nov 30 08:30:41.012 INFO [stderr]    |
Nov 30 08:30:41.012 INFO [stderr] 93 |         io::stdout().flush();
Nov 30 08:30:41.012 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Nov 30 08:30:41.012 INFO [stderr]    |
Nov 30 08:30:41.012 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 08:30:41.012 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 08:30:41.012 INFO [stderr] 
Nov 30 08:30:41.052 INFO [stderr] warning: unused imports: `Receiver`, `Sender`
Nov 30 08:30:41.052 INFO [stderr]  --> src/main.rs:3:23
Nov 30 08:30:41.052 INFO [stderr]   |
Nov 30 08:30:41.052 INFO [stderr] 3 | use std::sync::mpsc::{Sender, Receiver};
Nov 30 08:30:41.052 INFO [stderr]   |                       ^^^^^^  ^^^^^^^^
Nov 30 08:30:41.052 INFO [stderr]   |
Nov 30 08:30:41.052 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 08:30:41.052 INFO [stderr] 
Nov 30 08:30:41.052 INFO [stderr] warning: unused import: `std::sync::mpsc`
Nov 30 08:30:41.052 INFO [stderr]  --> src/cli/interface.rs:3:5
Nov 30 08:30:41.052 INFO [stderr]   |
Nov 30 08:30:41.052 INFO [stderr] 3 | use std::sync::mpsc;
Nov 30 08:30:41.053 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 30 08:30:41.053 INFO [stderr] 
Nov 30 08:30:41.053 INFO [stderr] warning: unused import: `BufRead`
Nov 30 08:30:41.053 INFO [stderr]  --> src/cli/display.rs:1:28
Nov 30 08:30:41.053 INFO [stderr]   |
Nov 30 08:30:41.053 INFO [stderr] 1 | use std::io::{self, Write, BufRead};
Nov 30 08:30:41.053 INFO [stderr]   |                            ^^^^^^^
Nov 30 08:30:41.053 INFO [stderr] 
Nov 30 08:30:41.156 INFO [stderr] warning: unused variable: `error`
Nov 30 08:30:41.156 INFO [stderr]   --> src/cli/display.rs:41:21
Nov 30 08:30:41.156 INFO [stderr]    |
Nov 30 08:30:41.156 INFO [stderr] 41 |                 Err(error) => String::from(""),
Nov 30 08:30:41.156 INFO [stderr]    |                     ^^^^^ help: consider using `_error` instead
Nov 30 08:30:41.156 INFO [stderr]    |
Nov 30 08:30:41.156 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 08:30:41.156 INFO [stderr] 
Nov 30 08:30:41.156 INFO [stderr] warning: unused variable: `buffer_pointer`
Nov 30 08:30:41.156 INFO [stderr]   --> src/cli/display.rs:57:17
Nov 30 08:30:41.156 INFO [stderr]    |
Nov 30 08:30:41.156 INFO [stderr] 57 |         let mut buffer_pointer = 0;
Nov 30 08:30:41.156 INFO [stderr]    |                 ^^^^^^^^^^^^^^ help: consider using `_buffer_pointer` instead
Nov 30 08:30:41.156 INFO [stderr] 
Nov 30 08:30:41.156 INFO [stderr] warning: variable does not need to be mutable
Nov 30 08:30:41.156 INFO [stderr]   --> src/main.rs:12:9
Nov 30 08:30:41.156 INFO [stderr]    |
Nov 30 08:30:41.156 INFO [stderr] 12 |     let mut user_finished = false;
Nov 30 08:30:41.156 INFO [stderr]    |         ----^^^^^^^^^^^^^
Nov 30 08:30:41.156 INFO [stderr]    |         |
Nov 30 08:30:41.156 INFO [stderr]    |         help: remove this `mut`
Nov 30 08:30:41.156 INFO [stderr]    |
Nov 30 08:30:41.156 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 08:30:41.156 INFO [stderr] 
Nov 30 08:30:41.168 INFO [stderr] warning: variable does not need to be mutable
Nov 30 08:30:41.169 INFO [stderr]   --> src/cli/display.rs:57:13
Nov 30 08:30:41.169 INFO [stderr]    |
Nov 30 08:30:41.169 INFO [stderr] 57 |         let mut buffer_pointer = 0;
Nov 30 08:30:41.169 INFO [stderr]    |             ----^^^^^^^^^^^^^^
Nov 30 08:30:41.169 INFO [stderr]    |             |
Nov 30 08:30:41.169 INFO [stderr]    |             help: remove this `mut`
Nov 30 08:30:41.169 INFO [stderr] 
Nov 30 08:30:41.169 INFO [stderr] warning: field is never used: `m_sender`
Nov 30 08:30:41.169 INFO [stderr]  --> src/cli/interface.rs:7:5
Nov 30 08:30:41.169 INFO [stderr]   |
Nov 30 08:30:41.169 INFO [stderr] 7 |     m_sender: Sender<String>,
Nov 30 08:30:41.169 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 08:30:41.169 INFO [stderr]   |
Nov 30 08:30:41.169 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 30 08:30:41.169 INFO [stderr] 
Nov 30 08:30:41.188 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 08:30:41.188 INFO [stderr]   --> src/cli/display.rs:93:9
Nov 30 08:30:41.188 INFO [stderr]    |
Nov 30 08:30:41.188 INFO [stderr] 93 |         io::stdout().flush();
Nov 30 08:30:41.188 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Nov 30 08:30:41.188 INFO [stderr]    |
Nov 30 08:30:41.188 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 08:30:41.188 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 08:30:41.188 INFO [stderr] 
Nov 30 08:30:41.200 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
Nov 30 08:30:41.200 INFO [stderr] su: No module specific data is present
Nov 30 08:30:41.992 INFO running `"docker" "inspect" "a064273acb1b8b64c51c016f3b4e398c024a53bfb7d76fc4bbbdb5a68f11cebf"`
Nov 30 08:30:42.294 INFO running `"docker" "rm" "-f" "a064273acb1b8b64c51c016f3b4e398c024a53bfb7d76fc4bbbdb5a68f11cebf"`
Nov 30 08:30:42.621 INFO [stdout] a064273acb1b8b64c51c016f3b4e398c024a53bfb7d76fc4bbbdb5a68f11cebf